First‐ and second‐ sphere coordination of the uranyl ion by bis[2‐(2‐hydroxyphenoxy)ethoxy]ethane |
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Authors: | Pierre Thury Martine Nierlich Bernardo Masci |
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Institution: | Pierre Thuéry,Martine Nierlich,Bernardo Masci |
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Abstract: | Uranyl nitrate hexahydrate reacts with bis2‐(2‐hydroxyphenoxy)ethoxy]ethane (C18H22O6), denoted LH2 hereafter, in the presence of triethylamine to give triethylammonium aqua2,2′‐(3,6‐dioxaoctane‐1,8‐diyldioxy)diphenolato‐κ2O,O′](nitrato‐κ2O,O′)dioxouranium(VI), (Et3NH)UO2(H2O)L(NO3)], which possesses a symmetry plane. The uranyl ion is coordinated to the two phenoxide O atoms, a nitrate ion and a water molecule (first sphere); the water molecule is itself held in the crown ether chain by hydrogen‐bonding interactions, thus ensuring second‐sphere coordination by the ligand L. |
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